Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Arlynn Henry Hartfiel, M.D.

Family Medicine Physician in Seguin, TX · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1063461549

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Registry record

Entity type Individual (Type 1)

Name Arlynn Henry Hartfiel

Credential M.D.

Sex Male

Practice address 1414 East Walnut, Seguin, TX, 78155

Phone (830) 379-7901

Fax (830) 401-0737

Enumeration date May 10, 2006

Last updated in NPPES Mar 2, 2015

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License E8540 (TX) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
P01385083	Other	-	RAILROAD MEDICARE
112035404	Medicaid	TX	-
8EM849	Other	-	BCBS

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Arlynn Hartfiel practice?

The practice location on file with NPPES is in Seguin, TX. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Arlynn Hartfiel?

The National Provider Identifier (NPI) for Arlynn Hartfiel is 1063461549, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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David Rider Family Medicine Physician · Seguin, TX NPI 1326202185

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-03-02.